A Master Reset WILL NOT reset the PIN. Your only options for unlocking a PIN locked Garmin are:
1 - Enter the correct PIN
2 - Take the unit to the location at which the PIN was originally entered
3 - Send the unit back to Garmin.

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Related Questions:

Doing a reset does not unlock a Garmin GPS. You need to take it back to your security location which you set when you first got it. It will then automatically unlock and you can set a new PIN. There is no master password, or password override.

if you forgot your pin number you must return to the SECURITY LOCATION...... the security location is where you first set up your gps....( your home or office ) then the unit will automatically unlock for you, remember to reset your pin number when unlocked..

Other than that you would have to send your unit back to Garmin with the proper receipt of ownership.

Wedll if this is not a stolen GPS Then the matter is simple. Take it back to the exact coordinates that you set the pin in. Then you will be able to access the pin setup and reset it to a new password. Your only other choice is to send it to Garmin, but if it has been listed as stolen, then expect the cops! No one forgets their pin or fails to remember the instructions for setting and recovering their pin.

Unfortunately, even if you perform master reset on Garmin GPS unit, it
does not reset Garmin Lock security feature, which password-protect most
Garmin electronic devices to deter theft. If you forget the PIN or
password unlock code to unlock the Garmin unit, the best solution is to
bring it to Garmin to get unlocked. “

Unfortunately, even if you perform master reset on Garmin GPS unit, it does not reset Garmin Lock security feature, which password-protect most Garmin electronic devices to deter theft. If you forget the PIN or password unlock code to unlock the Garmin unit, the best solution is to bring it to Garmin to get unlocked. “Secure Location” does not unlock a locked Garmin unit either as it’s only a temporary fix as when it’s turn on outside the security location, the device is locked again."
So unfortunately, there is only one option: You have to send your nüvi into the Garmin, who can unlock it. Remember original receipt.

Unfortunately, even if you perform master reset on Garmin GPS unit, it does not reset Garmin Lock security feature, which password-protect most Garmin electronic devices to deter theft. If you forget the PIN or password unlock code to unlock the Garmin unit, the best solution is to bring it to Garmin to get unlocked. “Secure Location” does not unlock a locked Garmin unit either as it’s only a temporary fix as when it’s turn on outside the security location, the device is locked again."
So unfortunately, there is only one option: You have to send your nüvi into the Garmin, who can unlock it. Remember original receipt.

Unfortunately, even if you perform master reset on Garmin GPS unit, it does not reset Garmin Lock security feature, which password-protect most Garmin electronic devices to deter theft. If you forget the PIN or password unlock code to unlock the Garmin unit, the best solution is to bring it to Garmin to get unlocked. “Secure Location” does not unlock a locked Garmin unit either as it’s only a temporary fix as when it’s turn on outside the security location, the device is locked again."
So unfortunately, there is only one option: You have to send your nüvi into the Garmin, who can unlock it. Remember original receipt.

Unfortunately, even if you perform master reset on Garmin GPS unit, it does not reset Garmin Lock security feature, which password-protect most Garmin electronic devices to deter theft. If you forget the PIN or password unlock code to unlock the Garmin unit, the best solution is to bring it to Garmin to get unlocked. “Secure Location” does not unlock a locked Garmin unit either as it’s only a temporary fix as when it’s turn on outside the security location, the device is locked again."
So unfortunately, there is only one option: You have to send your nüvi into the Garmin, who can unlock it. Remember original receipt.

Unfortunately, even if you perform master reset on Garmin GPS unit, it does not reset Garmin Lock security feature, which password-protect most Garmin electronic devices to deter theft. If you forget the PIN or password unlock code to unlock the Garmin unit, the best solution is to bring it to Garmin to get unlocked. “Secure Location” does not unlock a locked Garmin unit either as it’s only a temporary fix as when it’s turn on outside the security location, the device is locked again."
So unfortunately, there is only one option: You have to send your nüvi into the Garmin, who can unlock it. Remember original receipt.

Your safe location is where you entered the PIN number (probably your driveway). If it still won't unlock, send it to Garmin with your original receipt from an authorized Garmin dealer and they will reset it for you. There is no master unlock for the Garmin units, it must be reset by Garmin.